Dipping mechanism for electroplating apparatus.



No. 839,719. PATENTED DEC. 25, 1905. D. F. BRODERIOK.

DIPPINGMEGHANISM FOR ELEOTROPLATING APPARATUS.

APPLIUATION FILED JULY 2'1. 1906.

8 n-uzu r01,

OGwoWK N N I/9H?" mam 94M PATENTED DEC. 25, 1906.

' D. F. BRO

DIPPING MECHANISM FOR EL PLICATION I OPLATING APPARATUS.

III

DAVID FELIX BRODERICK, OF 'NEW BRITAIN, CONNECTICUT, ASSIGNOR OF ONE-HALF TO LEWIS SPERRY, OF SOUTH WINDSOR, CONNECTICUT.

DIPPING MECHANISM FOR ELECTRQPLATING APPARATUS.

Specification of Letters Patent.

Patented Dec. at, 1906.

Application filed July 27,1906. Serial No szaovo.

.To all whom it may concern:

Be it known that 1, DAVID FELIX BRonER- K, a resident of N evwBritain, in the county of Hartford and State of Connecticut, have invented certain new and useful Im rovements in Dipping Mechanism for E ectroplating apparatus, one object of the invention being to provide means for automatically dipping the articles tobe plated successively into the various plating and washing baths. v

A further object is to so construct a continuously-operating dipping mechanism that a large number of work-holders can be employed and made to operate simultaneously to successively dip the articles carried by each work-holder into a series of baths.

A further object is to provide in a-dipping apparatus an endless carrier for the workholders and to so associate said carrier with a series of tanks and work-holder-elevating devices that the endless carrier can be utilized throughout its full extent of travel for moving the work-holders and causing the successive immersingv of the work or articles to be plated into baths arranged under the carrier, whereby the complete process of plating and washing can be accomplished while the article carried by a holder is moving from a given starting-point until it returns to such startingoint.

A furt er object is to im rove the general structure of a dipping mec ianism and to so .construct and arrange the various details thereof that the whole shall be stron and substantial, as well as accurate and e cient in operation.

With these objects in view the invention consists in certainnovel features of construction and combinations and arrangement of parts, as hereinafter set forth, and pointed out in the claims;

In the accompanying drawings, Figure 1 is a side elevation, partly broken away, showing an embodiment of my invention. Fig. 2

is a plan view. Fig. 3v is a transverse sectlonal view on the line a; m of Fig. 1.

Fig. 4

is an enlarged sectional view through a 01'- tion of the carrier. Fig. 5 is an enlar ed ace view of a portion of the chain of t e conveyer.

1 represents suitable framework, and 2 3 two endless carriers arranged horizontall one above and spaced from the other, Eac carrier passes around sprocket-wheels 4, se cured to vertical shafts 5 at respective ends of the framework, and the shafts are provided with worm-wheels 6, receiving motion from worms 7 on a driving-shaft 8. Arranged under the carriers throughout the full extent of the travel thereof, except at-the loading and unloading point, is a series of tanksfor containing the various platin and washing baths employed in the art of e ectroplating.

The two endless carriers are identical in construction and operation, and a detail descri tion of one will therefore suflice for bot The frame of each carrier comprises two pairs channeled ides 9 10, the channeled orU bars of eac air being secured to the main framework an spaced'apart, facing each other, as shown in Fig. 4. The two parallel pairs of channeled ides may be raced by cross-bars 11, an the ides of one carrier will be connected with t e guides of the other carrier by means of vertical angle-irons 12. The endless chain 13 of the carrier travels throu h the airs of channeled guides-9 10 an aroun the sprocketwheels 4. Each endless carrier-chain comprises a series of links 14, pivotally connected together by means of a pin. These links move through the pairs of channeled guides, and the connecting-pins project beyond the edges of the links for the reception of rollers 16, which run against the inner faces of the guides and prevent undue lateral vibration of the carrier. The links of the carrier-chain are also rovided on each side with rollers 17, dispose between the op osing edges of the channeled guides of each pair and prevent undue vertical movement of the carrier. The rollers 16 and 17 thus serve to insure the easy and straight running of the carrier between the s rocket-wheels 4. Each of thes rocketwhee s consists of two disks provid ed with peri heral notches to receive the rollers 16 on t e links of the carrier-chain for transmitting motion to the latter.

Each link of each carrier-chain is rovided in one face with two sockets or pe orations 18 for the ,rece tion of pintles 19, adapted to project latera ly betweenv the channeled guides and beyond the same for the rece ti'on'of grooved wheels 20. In practice on y certain of the links will be provided with the pairs of intles' 19 and grooved wheels 20;

ut all said links will prefreably be adapted for the reoe tion of the pintles and ranged in line with the wheels on the links of the other carrier-chain to receive and guide vertically the movable'rods or shanks 21 of work-holders 22. Thus it will be seen that the two carriers cooperate in moving the ,WOIk-hOldGIS over the series of plating and washing baths. Between the two carriers cam-tracks 23 are secured to the framework, and each Work-holder rod is provided with a roller 24 to run on said cam-tracks. The cam-tracks are arranged to bridgethe dividing-Walls of the tanks, so that when the roller 24 of a work-holder rod reaches a cam-track it will travel up one inclined member a thereof, so as to raise the Work-holder and the Work carried thereby out of a tank. Said roller 24 will then travel on the straight u per ortion b of the cam-track until the wor ol er has passed the dividing wall or space between two tanks or baths, and then said roller will travel down the other inclined member a of the cam-track, (the an le of the member 0 preferably being more a rupt than that of the inclined member a of the cam-track,) and thus cause the work to be immersed in the next tank or bath. It will of course be understood that a cam-track such as above described will be provided for raising the work from each bath and automatically depositing it into the next.

Byadapting all the links of the carrierchains for the reception of guide-rollers 24 provided with suitable brushes 26, whic 1 wi e against the rods or shanks of the workho ders.

, Various changes might be made in the details of construction of my invention without departing from the spirit thereofor limiting its scope, and hence I do not wish to limit myself to the precise details hereinsetforth. Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is I 1. In a dippin mechanism, the combination with an en less carrier and a series of work-holders movable thereby, of means for automatically and independently raising and lowering each work-holder.

2. In a dipping mechanism, the combination with a carrier, work-holders and means for attaching a series of work-holders to the for independently raising "each work-holder.

out of one tank and inserting it into the next. 4. In a dippin mechanism, the combina tion with a workolder, of means for moving the work carried by said holder througha bath, and means independently of the carrier for raising and then lowering said. workholder.

5. In a dipping mechanism, the combination with a work-holder of means for moving I the work carried by said holder successively through a series of baths, and means indeendent of the carrier ,for raising the workolder from one bath and depositing it into the next bath.

6. In aidlpplng mechanism, the combina- I tion with a series of work-holders, of means for moving the work @arried by said holders simultaneously through a series of baths and means for independently raising each Workholder from one bath and lowering it to the next bath.

7. In a dipping, mechanism, the combination with an endless carrier and a series of work-holders carried thereby, of means for raising and lowering each work-holder independent of the others during the travel of the endless carrier.

8. In a dipping mechanism, the combination with superposed carriers, and a workholder connecte with both carriers, of means for raising and lowering saidI work-holder during the travel of the carriers.

9. In a dipping mechanism, the combination with super osed endless carriers, of a series of work-ho ders, each work-holder connected'with both carriers and movable with said carriers throughout the full travel thereof, and means interposed between saidcarrier for moving the work-holders vertically.

10. In a dipping mechanism the combination with a carrier, and a work-holder attached thereto, of a cam, and a projection on the work-holder to ride on said cam to raise and lower said work-holder.

' 11. In a dipping mechanism, the combination with two carriers, spaced apart, of a work-holder attached to .both of sa1d carriers, a cam located between the carriers anda projection on the work-holder to ride on said cam to raise and lower the WOIk'rhQldGI'.

holder carried by both of said carriers and vertically movable relatively thereto, and means for moving said work-holder vertically relatively to the carriers.

I guiding said carrier, a work-holder having a part connected with and vertically movable relatively to said carrier outside of said guid ing means, and means for moving said workholder vertically.

15. In a dipping mechanism, the combination with an endless carrier comprising a series of connected links and means of driving the same, of guideways embracing said links,..

two grooved wheels projecting from a link of the carrier through the space between the guideways, a work-holder dis osed between said grooved wheels and vertlcally movable relativel thereto, and means for moving said wor -holder vertically.

16. In an apparatus of the character de scribed, the combination with an endless carrier and aseries of tanks located under the same, of a series of vertically-movable workholders attachable to the carrier, means for independently moving each of said workholders vertically, anode-plates dis osed in the tanks, and means for including t 1e workholder in an electric circuit with the anodes and the baths in which they are immersed.

17. In an apparatus of the character described, the combination with a carrier, a series of tanks for plating-baths located under the carrier, and anode-plates in said tanks, of a series of vertically-movable work-holders, each having a shank connected with said carrier, an electric conductor-bar on the frame of the carrier, brushes electrically connected with said conductor and wiping against the shanks of the work-holder, and means for independently raising and lowerin each work-holder.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

DAVID FELIX BRODERICK.

Witnesses:

R. S. FERGUSON, GEO. F. .DOWNING. 

